Wrench



A. MAGNAN.

WRENCH.

APPLICATION FILED Aue.|1,1919.

1,348,832.. Patented Aug. 3,1920.

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WRENCH.

APPLICATION m59 Auem, 1919.

l 348,8 32 Patented Aug. 3, 1920.

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ulsu'rEnl STATES AUGUST MAGNAN, OF GREAT FALLS, MONTANA.

' WRENCH.

' Specification of Letters Patent.

Patented Aug. 3, 1920.

Application led August 11, 1919. Sera1 No. 316,630.

To all whom z5 may concern: v 'Be it known that I, AUGUST MAGnAN, a subject of the King of Italy, residing at Great Falls, in the county of Cascade and State of Montana, have invented certain .new and useful Improvements in Wrenches.; and I do declare the following to be a full, clear, and exact description of the invention,l such as will enable others skilled in the art to which it appertains to make and use the same. f

This invention relatesgenerally to tools, andmore particularly to wrenches.

The principal obj ect of the invention is Vto provide a wrench by which broken pipe may elbows or other couplings, the wrench being provided with jaw faces which engage the interior wall of the pipe or thelike and hencedo not injure the threads in any way.

Another object ofthe invention is to provide aV wrench of this character which may be adjusted to accommodate different sizes of pipes or theV like, and has an efliclent means for e'ecting a tight gripping engagement of the jaws with the pipe.

A further object of the invention is to generally prove upon devices of this class by the provision of a comparatively simple, strong, durable and inexpensive construction, one which will be eiiicient and reliable in operation, and well adapted to the purose for which it is designed.

With these and other objects in view, the invention consists of certain novel features of construction and the combination and arrangement of parts as will be hereinafter fully described and claimed.

In the accompanying drawings in which similar reference characters designate like parts throughout the several views Figure 1 is a side elevation of a wrench constructed in accordance with this invention;

Fig. 2 is a view of one edge of the wrench;

Fig. 3 is a view of the other edge thereof; and,

Figs. 4 and 5 are transverse sectional views taken on the planes indicated by the lines 4-4 and 5 5 of Fig. 1. j

Referring more particularly to the drawings, the numeral 1 designates an L-shaped member having a long shank 2 and a short shank 3, the former forming the handle of the wrench while the latter forms the fixed jaw. rIhe f ree end of the short shank 3 is providedA with an opening 4, and slidable through this is the long shank 5 of another L-shaped member 6, said long shank being arranged in a'substantially parallel relation with the long shank 2 of the member 1. The short shank 7 of the member 6 is substantially parallel with the short shank 3 of the member 1 but it extends in the opposite direction from said shank 3 so as to overlie the same.

The numeral 8 designates an L-shaped lever, the short arm 9 of which is provided with an opening 10 to receive the shanks 2 andl 5 of the members 1 and 6 and is pivoted by means of a bolt 11 to the long shank 2 of the member 1. The long arm of the lever extends'alongside ofthe shank 2 and in connection with the latter forms the handle of the wrench, the arm 12 being capable of being pressed against the shank 2 to swing the arm j 9 upwardly.

The long shank 5 of the member 6 is substantially rectangular in cross section and the opening 4 in the shank 3 of the member 1 and the opening 10 in the short arm of the lever 8 is shapedmore or less to conform to the shape of the shank 5 so as to prevent the latter from turning in these openings. The edges of the shank 5 are threaded as at 13 to receive a nut 14 disposed between the lower side of the shank 3 of the member. 1

and a washer 15 resting upon the upper side of the short arm 9 of the lever 8. The washer 15 has a substantially rectangular shaped opening 16 through which the shank 5 passes, and whereby said washer is prevented from rotating. By turning the nut 14 the L-shaped member 6 will be moved longitudinally with respect to the L-shaped member 1 so that the distance between the short shanks of these members or in fact the jaws of the wrench will be moved farther apart or closer together.

The outward movement of the longitudinal arm 12 of the lever 8 is limited by means of a band or keeper 17, the latter being carried preferably by pivoting the same on a bolt 18 extending through the long shank 2 of the member 1. The band necessarily surrounds both the shank 2 and the arm 12.

Projecting laterally from corresponding sides of the free end of the shank 7 and the inner end of the shank 3 and having their flat sides disposed adjacent each other or in abutting 'relation are semi-cylindrical lugs 19 and 2O respectively. The outer curved sides of the lugs 19 and 20 are provided with longitudinally extending teeth 21 which'are designed to bite into whatever is clamped by the wrench. The above describedwrench is particu-Y larlyadapted for use in removing a short 'piece of pipe from a union, elbow or other coupler, the elements 19 andV 20 lbeing inserted-into the pipe and moved intogripping engagement with the interior Vwall ofthe same by pressing the lever armV 12 toward the'long shank 2. This vobviously swings the lever so as to push upwardly onthe nut 14 which is carried by the long Y.shank 5 of 14 the wrench may be adjusted to accommo-f date pipes of different sizes.

From the foregoing description taken inconnection with the accompanying draw ings the construction, use and operation of the Vinventionlwill be readilyv understood Without a more extended explanation.

lVarious changesin form, proportion andv in the minor details of construction may be resorted to withoutv departing from the spirit of theinvention as delinedjin the appended claim.

vided atits inner end with a jawY face adapt-V 'ed to engage the inner side of a pipe or the Vlike and with an opening through its outer end, a second L-shaped member' having a ,threaded long shank extending through said opening and a short shank provided at its outer end with a jaw face adapted to engage the inner sideof a' pipel or the like and disposed opposite the jaw face carried by the short shank of the first member, the lcorresponding shanks of'said members being arranged in parallelrelation and Vsaid short shanks projecting in opposite directions, an Lshaped lever having its short arm pivot'ed to the long shank' of the first member and provided with an opening through which the threaded long shank of the second member extends', the long arm of said lever being disposed alongside the long shank of the first member to form a complementary han-' dle,Y anda nut threaded upon the long shank of thesecond member and disposed between the short arm of said lever and the short shank of the first member.

ln testimony whereof I have hereunto set myhandf' Au'eusr MAGNAN; f 

